To play Titanfall on PC you have to install a whopping 35GB of uncompressed audio, which isn't something we're used to with games.

Respawn lead engineer Richard Baker told Eurogamer this was to do with the developer engineering the game's data to work with less capable machines. In short, Titanfall reserves a decent proportion of CPU time for audio decode. By having uncompressed audio, the game runs faster for those using slower systems.